<?xml version="1.0" encoding="iso-8859-1"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <title>Qt 4.3: window.cpp Example File (painting/transformations/window.cpp)</title> <link href="classic.css" rel="stylesheet" type="text/css" /> </head> <body> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr> <td align="left" valign="top" width="32"><a href="http://www.trolltech.com/products/qt"><img src="images/qt-logo.png" align="left" width="32" height="32" border="0" /></a></td> <td width="1"> </td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a> · <a href="classes.html"><font color="#004faf">All Classes</font></a> · <a href="mainclasses.html"><font color="#004faf">Main Classes</font></a> · <a href="groups.html"><font color="#004faf">Grouped Classes</font></a> · <a href="modules.html"><font color="#004faf">Modules</font></a> · <a href="functions.html"><font color="#004faf">Functions</font></a></td> <td align="right" valign="top" width="230"><a href="http://www.trolltech.com"><img src="images/trolltech-logo.png" align="right" width="203" height="32" border="0" /></a></td></tr></table><h1 align="center">window.cpp Example File<br /><sup><sup>painting/transformations/window.cpp</sup></sup></h1> <pre><span class="comment"> /**************************************************************************** ** ** Copyright (C) 2005-2008 Trolltech ASA. All rights reserved. ** ** This file is part of the example classes of the Qt Toolkit. ** ** This file may be used under the terms of the GNU General Public ** License versions 2.0 or 3.0 as published by the Free Software ** Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3 ** included in the packaging of this file. Alternatively you may (at ** your option) use any later version of the GNU General Public ** License if such license has been publicly approved by Trolltech ASA ** (or its successors, if any) and the KDE Free Qt Foundation. In ** addition, as a special exception, Trolltech gives you certain ** additional rights. These rights are described in the Trolltech GPL ** Exception version 1.1, which can be found at ** http://www.trolltech.com/products/qt/gplexception/ and in the file ** GPL_EXCEPTION.txt in this package. ** ** Please review the following information to ensure GNU General ** Public Licensing requirements will be met: ** http://trolltech.com/products/qt/licenses/licensing/opensource/. If ** you are unsure which license is appropriate for your use, please ** review the following information: ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview ** or contact the sales department at sales@trolltech.com. ** ** In addition, as a special exception, Trolltech, as the sole ** copyright holder for Qt Designer, grants users of the Qt/Eclipse ** Integration plug-in the right for the Qt/Eclipse Integration to ** link to functionality provided by Qt Designer and its related ** libraries. ** ** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, ** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR ** A PARTICULAR PURPOSE. Trolltech reserves all rights not expressly ** granted herein. ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ** ****************************************************************************/</span> #include <QtGui> #include "window.h" Window::Window() { originalRenderArea = new RenderArea; shapeComboBox = new QComboBox; shapeComboBox->addItem(tr("Clock")); shapeComboBox->addItem(tr("House")); shapeComboBox->addItem(tr("Text")); shapeComboBox->addItem(tr("Truck")); QGridLayout *layout = new QGridLayout; layout->addWidget(originalRenderArea, 0, 0); layout->addWidget(shapeComboBox, 1, 0); for (int i = 0; i < NumTransformedAreas; ++i) { transformedRenderAreas[i] = new RenderArea; operationComboBoxes[i] = new QComboBox; operationComboBoxes[i]->addItem(tr("No transformation")); operationComboBoxes[i]->addItem(tr("Rotate by 60\xB0")); operationComboBoxes[i]->addItem(tr("Scale to 75%")); operationComboBoxes[i]->addItem(tr("Translate by (50, 50)")); connect(operationComboBoxes[i], SIGNAL(activated(int)), this, SLOT(operationChanged())); layout->addWidget(transformedRenderAreas[i], 0, i + 1); layout->addWidget(operationComboBoxes[i], 1, i + 1); } setLayout(layout); setupShapes(); shapeSelected(0); setWindowTitle(tr("Transformations")); } void Window::setupShapes() { QPainterPath truck; truck.setFillRule(Qt::WindingFill); truck.moveTo(0.0, 87.0); truck.lineTo(0.0, 60.0); truck.lineTo(10.0, 60.0); truck.lineTo(35.0, 35.0); truck.lineTo(100.0, 35.0); truck.lineTo(100.0, 87.0); truck.lineTo(0.0, 87.0); truck.moveTo(17.0, 60.0); truck.lineTo(55.0, 60.0); truck.lineTo(55.0, 40.0); truck.lineTo(37.0, 40.0); truck.lineTo(17.0, 60.0); truck.addEllipse(17.0, 75.0, 25.0, 25.0); truck.addEllipse(63.0, 75.0, 25.0, 25.0); QPainterPath clock; clock.addEllipse(-50.0, -50.0, 100.0, 100.0); clock.addEllipse(-48.0, -48.0, 96.0, 96.0); clock.moveTo(0.0, 0.0); clock.lineTo(-2.0, -2.0); clock.lineTo(0.0, -42.0); clock.lineTo(2.0, -2.0); clock.lineTo(0.0, 0.0); clock.moveTo(0.0, 0.0); clock.lineTo(2.732, -0.732); clock.lineTo(24.495, 14.142); clock.lineTo(0.732, 2.732); clock.lineTo(0.0, 0.0); QPainterPath house; house.moveTo(-45.0, -20.0); house.lineTo(0.0, -45.0); house.lineTo(45.0, -20.0); house.lineTo(45.0, 45.0); house.lineTo(-45.0, 45.0); house.lineTo(-45.0, -20.0); house.addRect(15.0, 5.0, 20.0, 35.0); house.addRect(-35.0, -15.0, 25.0, 25.0); QPainterPath text; QFont font; font.setPixelSize(50); QRect fontBoundingRect = QFontMetrics(font).boundingRect(tr("Qt")); text.addText(-QPointF(fontBoundingRect.center()), font, tr("Qt")); shapes.append(clock); shapes.append(house); shapes.append(text); shapes.append(truck); connect(shapeComboBox, SIGNAL(activated(int)), this, SLOT(shapeSelected(int))); } void Window::operationChanged() { static const Operation operationTable[] = { NoTransformation, Rotate, Scale, Translate }; QList<Operation> operations; for (int i = 0; i < NumTransformedAreas; ++i) { int index = operationComboBoxes[i]->currentIndex(); operations.append(operationTable[index]); transformedRenderAreas[i]->setOperations(operations); } } void Window::shapeSelected(int index) { QPainterPath shape = shapes[index]; originalRenderArea->setShape(shape); for (int i = 0; i < NumTransformedAreas; ++i) transformedRenderAreas[i]->setShape(shape); }</pre> <p /><address><hr /><div align="center"> <table width="100%" cellspacing="0" border="0"><tr class="address"> <td width="30%">Copyright © 2008 <a href="trolltech.html">Trolltech</a></td> <td width="40%" align="center"><a href="trademarks.html">Trademarks</a></td> <td width="30%" align="right"><div align="right">Qt 4.3.4</div></td> </tr></table></div></address></body> </html>